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Showing content from https://cplusplus.com/reference/exception/nested_exception/nested_exception/ below:

public member function

<exception>

std::nested_exception::nested_exception default (1) 
nested_exception() noexcept;
copy (2) 
nested_exception (const nested_exception& e) noexcept = default;

Construct nested_exception

Constructs a nested_exception object.

The default constructor (1) stores in the object an exception_ptr that points to the currently handled exception, as returned by current_exception. If no exception is being handled, the object stores a null exception_ptr.

The copy constructor (2) is explicitly defaulted.



Parameters
e
Another nested_exception object.

Example See nested_exception.

Exception safetyNo-throw guarantee: this member function never throws exceptions.

See also
throw_with_nested
Throw with nested (function)
nested_exception::nested_ptr
Get exception_ptr to nested exception (function)

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